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Replace std::lock_guard and std::lock with std::scoped_lock (#1758)

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std::scoped_lock was introduced in C++17 and is strictly better than
std::lock_guard as it supports locking any number of mutexes safely.
It's also easier to use than std::lock for locking multiple mutexes at
once.
This commit is contained in:
Tyler Veness
2019-07-08 22:58:39 -07:00
committed by Peter Johnson
parent 24d31df55a
commit 62be0392b6
79 changed files with 472 additions and 476 deletions
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6
wpilibc/src/main/native/cpp/smartdashboard/SmartDashboard.cpp
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@@ -97,7 +97,7 @@ void SmartDashboard::PutData(wpi::StringRef key, Sendable* data) {
return;
}
auto& inst = Singleton::GetInstance();
std::lock_guard lock(inst.tablesToDataMutex);
std::scoped_lock lock(inst.tablesToDataMutex);
auto& sddata = inst.tablesToData[key];
if (!sddata.sendable || sddata.sendable != data) {
sddata = SmartDashboardData(data);
@@ -120,7 +120,7 @@ void SmartDashboard::PutData(Sendable* value) {
Sendable* SmartDashboard::GetData(wpi::StringRef key) {
auto& inst = Singleton::GetInstance();
std::lock_guard lock(inst.tablesToDataMutex);
std::scoped_lock lock(inst.tablesToDataMutex);
auto data = inst.tablesToData.find(key);
if (data == inst.tablesToData.end()) {
wpi_setGlobalWPIErrorWithContext(SmartDashboardMissingKey, key);
@@ -256,7 +256,7 @@ std::shared_ptr<nt::Value> SmartDashboard::GetValue(wpi::StringRef keyName) {
void SmartDashboard::UpdateValues() {
auto& inst = Singleton::GetInstance();
std::lock_guard lock(inst.tablesToDataMutex);
std::scoped_lock lock(inst.tablesToDataMutex);
for (auto& i : inst.tablesToData) {
i.getValue().builder.UpdateTable();
}